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Aythya collaris
(gcide) | Scaup \Scaup\ (sk[add]p), n. [See Scalp a bed of oysters or
mussels.]
1. A bed or stratum of shellfish; scalp. [Scot.]
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2. (Zool.) A scaup duck. See below.
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Scaup duck (Zool.), any one of several species of northern
ducks of the genus Aythya, or Fuligula. The adult
males are, in large part, black. The three North American
species are: the greater scaup duck (Aythya marila, var.
nearctica), called also broadbill, bluebill,
blackhead, flock duck, flocking fowl, and {raft
duck}; the lesser scaup duck (Aythya affinis), called
also little bluebill, river broadbill, and shuffler;
the tufted, or ring-necked, scaup duck ({Aythya
collaris}), called also black jack, ringneck,
ringbill, ringbill shuffler, etc. See Illust. of
Ring-necked duck, under Ring-necked. The common
European scaup, or mussel, duck (Aythya marila), closely
resembles the American variety.
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Aythya collaris
(gcide) | Ring-necked \Ring"-necked`\, a. (Zool.)
Having a well defined ring of color around the neck.
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Ring-necked duck (Zool.), an American scaup duck ({Aythya
collaris}). The head, neck, and breast of the adult male
are black, and a narrow, but conspicuous, red ring
encircles the neck. This ring is absent in the female.
Called also ring-neck, ring-necked blackhead,
ringbill, tufted duck, and black jack.
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